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July 24, 2014

July 24, 2014

Post a New Question | Current Questions

**6th grade math**

35/(2+5)(2^3)-15
*Wednesday, March 28, 2012 at 9:49pm*

**statistics**

Calculate the z-score for each set of data. Determine who did better on her respective test, Tonya or Lisa. Student English Test Grade z-Score Student Math Test Grade z-Score John 82 Jim 81 Julie 88 Jordan 85 Samuel 90 Saye 79 Tonya 86 Lisa 82 Mean 86.50 81.75 St. Dev. 3.42 2...
*Thursday, March 22, 2012 at 3:03pm*

**to allison**

list of words with Fl or Fl in it: flat flood floss flesh inflate fly flying flution flap flames flame flavor flavors flight flights fleas floor flip flips flock I hope that works. if you need more help. post me .im a 4th grader
*Wednesday, March 21, 2012 at 7:22pm*

**Math - HELP !**

there are 50 students in the seventh grade , 62 percent of these students are involved in the drama club.how many seventh grade students are in the drama club ?
*Saturday, March 10, 2012 at 11:15pm*

**1st grade**

I am helping my little sister. SHe is in the first grade and learning about Abraham Lincoln. Her questions are- 1. What year was Abe president. What year did he die. 2. How old was he when he died? 3. When did he marry ____. Who did he marry. 4. Who made the first flag? 5. ...
*Friday, March 9, 2012 at 1:55pm*

**maths**

the sum of the 4th and 6th terms of an A.P is 42. the sum of the 3rd and 9th terms of the progression is 52. find the first term, the common difference and the sum of the first ten terms of the progression.
*Wednesday, March 7, 2012 at 3:46am*

**math 2nd grade**

what is 3/5 of 10? what is 1/3 of 12?
*Monday, March 5, 2012 at 10:58pm*

**4th grade challenging math questions**

a pioneer family plans to build a barn.they will need 12 large support posts along each side wall and 8 posts along both the front and back walls.they can cut the two posts from each tree that they chop down.How many trees should they chop down?How did you find your answer? B...
*Thursday, March 1, 2012 at 7:53pm*

**statistics**

12. A statistics student received a grade of 85 on a statistics midterm. If the corresponding z score equaled +1.50, and the standard deviation equaled 7, what was the average grade on this exam? a. 95.5 b. 74.5 c. 78.0 d. Cannot determine without knowing how many took the ...
*Sunday, February 26, 2012 at 3:08pm*

**statistics**

2. The grades on a statistics midterm exam were normally distributed with a mean of 72 and a standard deviation of 8. a. What is the proportion of students received a B grade. b. What is the proportion of students that failed the exam? c. What is the grade of the 92nd ...
*Thursday, February 16, 2012 at 6:49am*

**Maths**

Dots are arranged to form pattern as show below: pattern 1 they are 2 pattern 2 they are 5 pattern 3 (a) how many dots are in the 4th, 5th, 11th, 200th patterns?
*Friday, February 10, 2012 at 4:50am*

**Social Studies**

I need to find out 4 mistakes Germany made during WWI. I know one is unsrestricted submarine warfare. Another one would be the Zimmerman Note. A third one could be that they invaded Belgium. I can't think of a 4th mistake though.
*Tuesday, February 7, 2012 at 11:53am*

**arithmetic**

the sum of the 3rd and the 4th term is 44 and the sum of the 10th and the 15th term is 203. what is the sum up to the 20th term?
*Tuesday, February 7, 2012 at 9:17am*

**math**

or each month jack works he earns an increase or raise of $. 05 on his hourly pay if he has already worked for three months, which shows his 4th month's hourly rate in terms of his first month's hourly rate?
*Tuesday, January 31, 2012 at 6:48pm*

**Math**

Please help me with the following problem, I have submitted the answer: 88.2 and was told that it was incorrect. The word problem reads: If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a...
*Wednesday, January 25, 2012 at 11:02pm*

**math**

Please help me with the following problem, I have veiwed the answers to the other problems like this one and were told they were incorrect: If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. ...
*Wednesday, January 25, 2012 at 6:19pm*

**MATH**

I have no idea on how to get started. If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how many meters does it ...
*Monday, January 23, 2012 at 10:32pm*

**MATH**

If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how many meters does it fall during the 4th and 5th seconds ...
*Monday, January 23, 2012 at 7:42pm*

**Math, Quadratics**

Farmer John is building a pen to keep his pig in. John has 40m of fencing. He will only need to make 3 sides to the pen because the 4th side will be along a barn. If John wants the maximum area what should the side lengths of the pen be?
*Saturday, January 21, 2012 at 2:55am*

**math**

in 2nd year Adam owed $ 977.53, in the 3rd year he owed $ 1036.18 and in the 4th year he owed $1098.35 how much was the loan originally, and determine the future value of the loan after 10 years
*Thursday, January 19, 2012 at 10:43pm*

**physics**

At a point in a pipeline the velocity of liquid is 2 m/s and the pressure is 10^5 Pa. what is the pressure at a point 10 m lower than the first one (the cross-section is 1/4th of the previous one and the density of liquid is 800 kg/m^3)
*Thursday, January 19, 2012 at 9:55pm*

**arithmetic**

the sum of the 4th and 8th terms is 10, and the sum of the 6th and 12th terms is 22. Find the first three terms.
*Thursday, January 19, 2012 at 11:57am*

**Math**

The endpoints of one diagonal of a The The endpoints of one diagonal of a rhombus are (0, -8) and (8, -4). If the coordinates of the 3rd vertex are (1, 0), what are the coordinates of the 4th vertex? (7, -12) (7, -8) (-8, -4) (-4, -12)
*Wednesday, January 18, 2012 at 6:00pm*

**6th grade math**

1/4 * 1/2 =4D
*Monday, January 16, 2012 at 6:46pm*

** 5 th grade algebra**

5a-a-2a=18
*Saturday, January 14, 2012 at 10:17pm*

**4th math**

can you help me with this problem,? here is the number of lunches served last week at a school. 234,234,245,250,255. I already got the median is 245 set and Mode is 234 set. what do you think will be the next number of lunches serves?--- why?-----
*Wednesday, January 11, 2012 at 6:48pm*

**Spanish-Please check SraJMcGin**

Hi, I redid some of the answers as suggested yesterday from someone who responded to my post. Could you please see if I did them correctly-Thank you- I made the corrections-someone yesterday redid a question but the questions shouldn't be redone-that's my homework-the ...
*Thursday, January 5, 2012 at 7:46pm*

**Question **

I'M CURIOS SO DON'T JUST JUDGE ME AND BE RUDE i'M REALLY CURIOUS AND i FORGOT TO ASKED THIS QUESTION. DO NOT JUDGE ME!!!! Do I start taking SAT's and ACT's in grade 10th or 11th/12th grade???? I'm really curious.
*Friday, December 30, 2011 at 12:29pm*

**Statistics**

2. You are given the following data. Number of Absences Final Grade 0 93 1 90 2 79 3 66 4 60 5 56 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days. Show all ...
*Friday, December 30, 2011 at 12:31am*

**math**

The 4th term of an AP is 3 times its first term and the 7 term exceeds the 3 term by 1.Find the 10 term of an AP.
*Thursday, December 8, 2011 at 8:13am*

**SAT's and ACT's **

How to pass the SAT's and ACT'S for the John Hopkins Talent Search? Here are the grade chart. Awards Ceremony Eligibility Chart (valid for students who tested by June 30, 2011) SAT Grade 7 Math >=550 or Critical Reading >=550 ACT Grade 7 Math >=21 or Reading &...
*Friday, December 2, 2011 at 7:25pm*

**math**

Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class. She tells you the following calculation is used to find your final grade: 75+85+90+X ___________ > 4 x is her last score which has not been taken. ...
*Wednesday, November 30, 2011 at 6:49pm*

**math**

Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class. She tells you the following calculation is used to find your final grade: 75+85+90+X ----------- > or = to 85 4 x is her last score which has not ...
*Tuesday, November 29, 2011 at 11:20pm*

**algebra**

Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class. She tells you the following calculation is used to find your final grade: w2d2 x is her last score which has not been taken. Explain this equation and ...
*Tuesday, November 29, 2011 at 9:43pm*

**math**

Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class. She tells you the following calculation is used to find your final grade: w2d2 x is her last score which has not been taken. Explain this equation and ...
*Tuesday, November 29, 2011 at 8:43pm*

**Plz Help **

You I'm entering this contest Scholastic Arts and Writing Award, and I'm a bit confused so I have to register online, then fill out a form since I'm doing it and mail my art work and writing in???? I check the site but I'm confused. I'm in 7th grade by the ...
*Sunday, November 27, 2011 at 10:04am*

**MAth grade 8**

x+5/6 = 3x-5/8 Solve for x
*Tuesday, November 22, 2011 at 8:02am*

**My Award Binder**

I have a award binder to keep all of my award from 1st grade to now and I need ideas to organize it and make it pretty. I don't have any award from 7th grade but my pricipal said that I will have a lot of awards (as I was walking to go to the library during my lunch period...
*Saturday, November 19, 2011 at 7:21pm*

**arithmetic**

If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011
*Wednesday, November 16, 2011 at 3:20pm*

**Economics**

Im trying to figure out my grade what would i need to get a c average in the class;39%,of my grade is is based on 3 assignments(i got so far 62%,80%,haven't done the last assignment yet), 3 exams each worth 20%( i got a 2%,40%, haven't taken the last one) and 1% for ...
*Wednesday, November 16, 2011 at 12:24pm*

**Accounting**

If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?
*Wednesday, November 16, 2011 at 12:02pm*

**Science project fair**

Hello: My daughter is in 4th gde and is about to turn in her displayboard but we are not coming up with a good title. She wants to title it "Flowers with sweet tooth". In her science projct she has discovered that sugar helps cut flowers live longer than with just ...
*Tuesday, November 15, 2011 at 10:03am*

**AP Calculus AB**

A river boat company offers a 4th of july trip to an organization with understanding that there will be at least 400 passengers. each ticket is $12, and company agrees to refund $.20 to every passenger for each 10 passengers in excess of 400. find the number of passengers that...
*Saturday, November 12, 2011 at 2:33pm*

**Math**

Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?
*Wednesday, November 9, 2011 at 1:47am*

**8th Grade Help **

My sister is gradating grade 8th this year and she wants to create her own 8th grade yearbook using a "marble notebook" she doesn't want to use a scrapbook she need cover ideas memorable quotes and funny ideas background ideas (when putting pictures she needs ...
*Tuesday, November 8, 2011 at 12:03pm*

**7th grade math**

8/9 \1/4
*Saturday, November 5, 2011 at 7:53pm*

**arithmetic**

The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term
*Friday, November 4, 2011 at 6:17am*

**MATH 7th GRADE**

7ã3 / ã 5
*Saturday, October 29, 2011 at 9:21pm*

**MAth grade 8**

y^2-4y+4/2-6y x 2y+4/3y^2-12
*Wednesday, October 26, 2011 at 10:04am*

**PLZ HELP....STATS**

You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
*Sunday, October 23, 2011 at 11:52pm*

**Stats**

You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
*Sunday, October 23, 2011 at 1:04pm*

**Math**

You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
*Friday, October 21, 2011 at 3:03pm*

**math**

The number uses every number 0-9 the numbers are used only once the fourth digit is 4 the first digit in the billions place is 3 the 5 is next to the last digit the sixth digit is 7 the digit after 3 is 9 the digit before 5 is 2the third digit is half the value of the eigth ...
*Thursday, October 20, 2011 at 9:26am*

**math**

the number of 5th grade students in a school is a prime number greater than 50.What is the least number of 5th grade students there could be in a school
*Thursday, October 13, 2011 at 5:05pm*

**math**

the chess club has 55 members 22 of them are in 6th grade what percent of the club is not in 6th grade
*Wednesday, October 12, 2011 at 8:08pm*

**math**

Studies have shown a particular television commercial is understood by 25% of first grade students and 80% of fourth grade students. If a television advertising agency randomly selects one first grader and one fourth grader, what is the probability neither child would ...
*Tuesday, October 11, 2011 at 12:05am*

**science**

This is for a 4th grd science project. I am in doubt in what independent variables to use for the project. The topic that my daughter selected is Does heart rate INCREASE with INCREASING SOUND volume? Thank you for your help!!!
*Thursday, October 6, 2011 at 1:59pm*

**5th Grade Math**

I just wanted to Thank you Ms. Sue for the help my son is in 5th grade and some of his homework i don't understand, and i don't want him to turn it in wrong. So if i have more of an understanding then i can help him more with his homework so he gets a better ...
*Tuesday, October 4, 2011 at 9:58pm*

**social psy**

) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of information, the strength of the...
*Monday, October 3, 2011 at 2:23pm*

**pls help solving 4th math**

1. Explain why you would use front end estimation. Gie an example of one time you might use it. 2. Explain in words how to add 234+467. Make sure to explain regrouping, if necessary. Thanks for your help!
*Wednesday, September 28, 2011 at 9:25pm*

**physics**

Which statements are true for the resistivity of a metal conductor: It depends on the temperature of the material. It becomes smaller as the cross-sectional area of the material becomes smaller. It is positive for copper but negative for carbon. It has units of ohms/meter. It ...
*Wednesday, September 28, 2011 at 7:27pm*

**math 11 grade**

How do you do this 5a+(9)-12e*5a+(3)
*Monday, September 26, 2011 at 9:10pm*

**6th grade math**

3/4x-2/3x=2/5
*Wednesday, September 21, 2011 at 4:44pm*

**Math 4th gr**

How do I write this in standard form 3,000,000+200,000+40,000+600+70+7?
*Thursday, September 15, 2011 at 9:50pm*

**5th grade algebra**

4h=31-3 h=?
*Thursday, September 15, 2011 at 8:18pm*

**math**

Polk Elementary School has three classes for each grade level,kindergarten through fifth grade.If there is an average of 27 students per classroom,about how many students attend Polk Elementary School?
*Wednesday, September 14, 2011 at 2:55pm*

**arithmetic**

If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?
*Monday, September 12, 2011 at 11:56am*

**prealgebra**

IM stuck on a question. PLease help. A teacher is giving candy to his periods. First period gets 1/3 and 2nd period gets 1/4 and 3rd period gets 1/3 and finally 4th period gets 22 pieces. How many pieces did each period get? Im stuck!!
*Wednesday, August 31, 2011 at 6:06pm*

**algebra**

27a squared b cube - 36a cube b squared + 18 a squared b squared + 9 a to the 4th b cube
*Monday, August 22, 2011 at 10:02pm*

**6th grade math**

2 2/3 \ 1 5/6
*Thursday, August 18, 2011 at 7:31pm*

**math**

a 4 digit number my 2 nd digitis twice my 3 digit the sum of all my digits is 3 times greater than my last digit the productof my 3rd and 4th digits is 12 times greater than the ratio of my 2nd to 3rd whats my number?
*Thursday, August 18, 2011 at 3:08pm*

**math**

on his first exam, he studied for 10 hours and went to tell the mall for 4hours, and got a score of 85. how long should he study to get a grade of 96 and go to the mall for 17 hours? grade varies directly with studying and inversely with going to the mall. is the answer 48hrs?
*Tuesday, August 2, 2011 at 12:30pm*

**Math**

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...
*Wednesday, July 20, 2011 at 10:08am*

**Math**

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...
*Tuesday, July 19, 2011 at 5:30pm*

**Stats**

a raw score on a particular intelligence test is known to be approximately normally distributed in a population of 4th graders, with a mean of 95 and variance 81. which score has the property that there are 15% of scores in the population that are above it?
*Friday, July 15, 2011 at 11:14am*

**Math-Please help :(**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Thursday, July 14, 2011 at 10:42pm*

**stats**

Can someone please help me, I have been working on this for 2 hours now and I keep getting a negative answer. You are given the following data. Number of Absences Final Grade 0 99 1 94 2 79 3 73 4 68 5 53 - Find the correlation coefficient for the data. - Find the equation for...
*Thursday, July 14, 2011 at 9:21pm*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Thursday, July 14, 2011 at 6:13pm*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Thursday, July 14, 2011 at 4:48pm*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Wednesday, July 13, 2011 at 8:06pm*

**Math-geometry**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Wednesday, July 13, 2011 at 6:39pm*

**Math-geometry**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...
*Tuesday, July 12, 2011 at 12:00am*

**Biology**

Human vision can distinguish objects down to about a 4th of a millimeter (~250 micrometers). Given this, which of the following are generally visible to the human eye? Proteins Bacterial cell Animal cell Poxvirus Ribosomes Plant cell None of the above I think none of the above...
*Monday, June 20, 2011 at 9:59pm*

**Math**

The table below shows the number of molecules in experiment B. Time(h) : 1st , 2nd , 3rd , 4th , 5th No. of molecules : 3 , 8 , 15 , 24, 35 (i) how many molecules will there be in nth hour? (ii) from which hour onwards would the no. of molecules be in experiment B?
*Saturday, June 18, 2011 at 1:23am*

**math grade 5**

My sister in grade 5 needs help but i dunt exactly know how to do the answers myself, so if someone can help me out i can explain to her better. Thanks 3. You are using a tree diagram with 12 branches to show the possible outcome of a probability experiment What might the ...
*Monday, June 6, 2011 at 8:55pm*

**MAT/116**

I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...
*Monday, May 30, 2011 at 12:26am*

**MAT/116**

I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...
*Sunday, May 29, 2011 at 11:55pm*

**math**

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 210 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...
*Sunday, May 29, 2011 at 7:57pm*

**school in general**

Hi i have a question im currently in 7th grade but i was held back a year in first do you think there would be any possible way to advance to 8th grade just curios I believe I have a wide enough knowledge span to pull it off but im just questioning the wheter or not it would ...
*Friday, May 27, 2011 at 6:48pm*

**math**

Mother duck collected 120 worms and divided them into 5 equal groups. She gave 8 of her worms to the first 3 ducklings. Then she took 3 of theirs and gave to the 4th duckling. How many did each end up with?
*Tuesday, May 24, 2011 at 6:25pm*

**world issuse**

I'm a 7 letter word u read daily,my 5th 6th and 7th letter increase each year,my 3rd n 4th letter are the same,my 3rd 2nd n 5th letter cover 75% of the world.
*Tuesday, May 24, 2011 at 2:29am*

**criminal justice**

Prepare a 6–8 slide PowerPoint presentation that addresses the following questions: •What are some of the ways that organized crime impacts you and a community and/or city (of your choice) directly? (This element will account for 20% of your grade.) •What are ...
*Wednesday, May 18, 2011 at 1:03am*

**Science-6th**

I'm having some trouble with this thing in science. It wants us to list four members of the Protist kingdome. I already have 3, algae, protozoa, and slime molds. I can't think of a 4th one! Help please!
*Thursday, May 5, 2011 at 6:14pm*

**physics**

If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
*Thursday, May 5, 2011 at 3:22am*

**Physics**

If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
*Wednesday, May 4, 2011 at 3:38am*

**math**

in 4a and 4c there are same no of girls total there are 56 people in both the classes if 1/3 of people in 4a and 1/4th of people in 4c are girls find total number of girls in both the classes
*Monday, May 2, 2011 at 8:02am*

**math**

There are 283 students in Walley's school and 59 of them are in the sixth grade. What is the approximate percent of student at Walley's school who are in the sixth grade
*Wednesday, April 20, 2011 at 9:23pm*

**math**

An average score of 90 or above in a history class receives an A grade. You have scores of 90, 89, and 85 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.)
*Wednesday, April 20, 2011 at 9:22pm*

**science**

I have two questions I need help with. First is a two word answer for _____ can occur when heat from a volcano melts snow on a mountain. Total of 12 letters, 2nd is a, 4th s, 12th t. Second question-what is a 7 letter word for a mixture of loose sand, rock, and water moving at...
*Thursday, March 31, 2011 at 9:14pm*

**7th grade math**

2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?
*Sunday, March 27, 2011 at 7:42pm*

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